{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "It has been proposed that nitric oxide ( NO ) induced headache in primary headaches may be associated with release of calcitonin gene - related peptide ( CGRP ) ."}
{"Disease": ["headache", "primary headaches"], "Chemical": ["nitric oxide", "NO"]}